Extension-table.



T. B'. EHA'RT. lExTENsloN TABLE.

APPLICATION FILE-D MAY 23. 1916.

mr mmm: psu-ns co.. wnorv'uma.. wAsmNcmN. n C

T. B. EHART.

EXTENSION TABLE.

APPLlcAnoN man MAY 2a, 191e.

1,217,727. Patented Feb.27,1917.

port or store the table.

THoMAs is. Erreur, or ritr'rsBUaG, Kansas. i

EXTENSIONTABLE.

To all wit-0m t may concern:

Be it known that I, THOMAS B. Elmar, a citizen ofthe United States, residing at Pittsburg, in the county of Crawford and State of Kansas, have invented new and use-` ful Improvements in Extension-Tables, of which the following is a specification. Y

This invention relates vto improvements inV 1t is also my purpose features of simplicity, efficiency and durability, which may be manufactured and marketed at comparatively small cost and which may be quickly and conveniently extended and reduced in length@ lVith the above and other objects in view, the invention consists in the construction, combination and arrangement of parts hereinafter set forth in and falling within the scope of the claims.

In the accompanying drawings: y

Figure 1 isa view in side elevation of an extension table constructed in accordance with my present invention, the same being4V shown reduced.

Fig. 2 is a top plan view of the table,"the parts being shown extended and the top of the table removed.

Fig. 3 is a longitudinal sectional .view through the table.

Fig. 4c is a collective view lshowing the extensible portions of the table in perspective. Y 5

Fig. 5 is a cross sectional view on the line 5 5 of Fig. 2.

Fig. 6 is a'fragmentaryend View of amodification. Y y

Referring now to the .drawings 1n detail,

1 designates a base constructed of any suitable material and preferably mounted upon casters 2 so that the same may be'readily moved about from place to place. Secured to the base 1 and upstanding therefrom is a pedestal 3. Mounted upon the upper end of the pedestal 3 is a supporting bar it formed centrally with an opening alining wit-hopelr ings in the upper and lower ends respectively of the pedestal and passed throughj- Application filed May 23, ,1916i Serial 110.99378. Y fr to provide an exten-v sion table which will embrace thev desiredl these alining openingsis'a securing rod 5 having the lower end formed with a head 6 and the upper end screuHthreaded as at 7 and threaded ontothe end 7 of the rod 5 yis a hand nut 8 whereby the bar l may be rigidly secured to the pedestal.` `Disposed uponV the ends respectively of the bar 4L are transverse bars44 9, 9 rspaced apart in parallelismY a'nd having the central portions thereofsecured to the bar 1,wh1le spanning the spaces between the ends ofthe bars 9 and secured to the extremities of such bars vare guides 10,

10 lying parallel with each other and with 'v the bar 4ll and disposed at the opposite sides of the bar 1.

v Specification of Letters Patent. PatQ-ntd Feb, 27,' 1.917,.,

1nV the present instance, each guide 10' comprises a base strip 11 and longitudinalguidestrips 12, 12 secured to the .upper-'sur-V face of the'base'strip 11 adjacent to the re- Y s'pective side edges thereof and-projecting upwardly therefrom. TheseV guide strips 12, 12 are spacedapart `inl parallelism and formed in theconfronting faces. thereof arev longitudinallyextending guide grooves 13. Slidably mounted within-fthe guides 10, 10

respectively are slide bars 14C having` theV inner edges thereof in edge to edge contact with the r,adjacent sides of the inner bars 12- of the'respective guides and formed on, such edges of the slide bars 14C are longitudinally extendingribs 15 engaging inthe adjacent grooves 13 respectively. Also slidably mounted within the respective guides 10,10 are slide bars 16, 16 having the outer edges thereof in face to face contact with the inner surfaces of thecuterv bars'12 of the guides 10 respectively andy formed on the outer edges ofthe bars16 are longitudinally ex` The inner edges of the'y slide bars 16 are in face to face contact with the outer edges of the bars 141@ and the guides 10, 10' and bars 14 and 16 cooperate to'l form, in effect, longitending ribs 17 Ythat engage in the grooves 13 1n the mner'surfaces oftheV outer bars 12..

tudinal side bars forthe table. The bars 14 i are capable of Y'sliding'.movement outwardly from one-end of the guides, whilethe bars 16 are adapted to move outwardly from the' opposite ends of" the guides so that tbe length lof the side bars formed by suchV guides and bars 14 and 16, may be increased. Secured to the outer extremities vof the slide bars 14 is an end bar 18, while fastened to the outer extremities of the slide bars 16 is an end bar 19. 20, 20 designate guidebars superimposed upon the'slideba'rs 151, lire spectively and having the outer ends thereof' seated within recesses formed in the upper surface of the end bar 18 and secured within such recesses. Each guide bar 2O is of a length less than the similar dimension of the adjacent slide bar and the inner ends of the guide bars terminate short of the similar extremities of the slide bars, while the confronting edges of the guide bars are formed with stepped rabbets 2l. Superilnposed upon the slide bars 16 are guide bars 23 having the outer ends thereof seated within recesses formed in the upper edge of the end bar 19 and secured within such recesses, and the inner ends terminate short of the inner extremities of the slide bars. The outer edges of the guide bars 23 are formed with stepped rabbets 24 adapted to fit into the rabbets 2l in the bars 20 respectively when the endvbars are at their limit of inward movement. The end portion of each bar 20, 23 adjacent to the particular end bar is of a width equal to the similar diniew sion of the space between the bars an d the particular guide l0 and the side el of such portions of the guide bars engage the confronting surfaces of the respective bars 12 of the particular guide, thereby holding the slide bars against rattling within the guides and reinforcing the side bars. The upper surface of each slide bar 14, 16, adja` cent to the inner end thereof, is equipped with a roller 25 adapted to bear against the under surface of the adjacent guide bar so as to eliminate friction between the parts.

Detachably connected to the upper surface of the frame thus formed are top forming sections 26, 26 placed end to end and having the meeting edges thereof adapted to engage each other when the adjustable side bars of the frame are reduced in length, When, however, the slide bars are extended to increase the lengths of the side bars of the table, the meeting ends of the sections 26 of the table top separate and table leaves are interposed between the confronting ends of the sections 26 so that the top of the table may be increased in length.

Vhen the sections of the table are brought together, owing to the inward movement of the slide bars let and 16, the table top is substantially square in top plan and if desired, segmental sections 27 may be secured to the side and end bars respectively of the table contiguous to the sections 26 so as to form a table top that is circular in top plan.

While l have herein shown and described one preferred form of my invention by way of illustration, l wish it to be understood that I do not limit or confine myself to the precise details of construction herein described and delineated, as modifications and variation may be made within the scope of the claims without departing from the spirit of the invention.

claim:

l. An extension table comprising a pcdestal, pairs of guide bars mounted upon said pedestal and spaced apart in parallelism, the bars of each pair having the confronting faces thereof formed with alining grooves, slide bars mounted between said pairs of guide bars respectively and ribs formed on the confronting faces of niid slideV bars and engaging in the adjacent grooves, ai second set of slide bars mounted vbetween said guide bars respectively and having the inner edges in edge to edge contact with the outer edges of the first-mentioned slide bars, ribs formed on the outer surfaces of said last-inentioned slide bars respectively and engaging in the adjacent grooves, end bars carried by the outer cxtl'emities of the first andVV secondfnaiuwl slide bars respectively whereby said slid@` f bars .may be moved outwardly of said guides `iu relatively opjiiositc directions, top formw ving sectirms connected to said first and secoiul-named slide bars respectively and movable therewith to increase the length o f the table top, and guide bars superimposed upon said slide bars respectively and connected to said end bars and movable with said slide bars into and out of the spaces between said first mentioned guide bars, the confronting edges of companion guide bars being formed with interlitting'rabbets.

2. An extension table comprising a pedrestal, pairs of guide bars mounted upon said pedestal and spaced apart in parallelism, slide bars vmounted between said pairs of guide bars respectively, a second set of slide bars mounted between the said guide bars, respectively, and having the inner edges in edge to edge contact with the outer edges of the first mentioned slide bars, end bars carried by the outer extremities of the first and second named slide bars, respectively, whereby said slide bars may be moved outwardly of said guides in relatively opposite directions, top forming sections connected to said first and second named slide bars respectively, vand movable therewith to increase the length of the table top, and guide bars superimposed upon said slide bars respectively, and connected to said end bars and movable with said slide bars into and out of the spaces between said first mentioned guide bars.

In testimony whereof I aiiix my signature in presence of two witnesses.

THOMAS B. EHRT.

lVitnesses: y

HERMAN C. VAN HALL, DANIEL lV. SHELTON.

Giropies of this patent may be obtained for five cents each, by addressing the GommSS/,OMFI 0f fml Washington, JD. G. 

